$\text { The half-life of the radium isotope Ra-226 is approximately } 1,599 \text { years. If the initial }$

question 67

Multiple Choice

$\text { The half-life of the radium isotope Ra-226 is approximately } 1,599 \text { years. If the initial }$ quantity of the isotope is $38 \mathrm {~g}$ , what is the amount left after 1,000 years? Round your answer to two decimal places.

• A) \(24.63 \mathrm {~g}\)
• B) \(30.60 \mathrm {~g}\)
• C) \(25.13 \mathrm {~g}\)
• D) \(11.88 \mathrm {~g}\)
• E) \(12.32 \mathrm {~g}\)

---

Definitions:

Corporate PR

Involves managing the public relations efforts of a corporation to build and maintain a positive image and strong relationships with stakeholders and the public.

Human Resources

The department within an organization responsible for managing employee-related processes including recruitment, training, compensation, and benefits.

Bureau of Labor Statistics

A U.S. government agency responsible for collecting, analyzing, and disseminating essential statistical data related to labor economics.

Job Outlook

The projection of employment growth or decline in certain fields or occupations over a future period.